What do you need to include in your donation acknowledgment letter? A donor acknowledgement letter should include a few specific items to assist the donor and help your organization comply with IRS regulations.A gift acknowledgment letter weaves together your nonprofit's appreciation, engagement, and compliance efforts following a donor's generosity. Thank you for your gift in the amount of Gift. "Thank you for your contribution of (insert amount of cash donation) on Date. No goods or services were provided in exchange for this contribution. This receipt is issued to individuals who have donated cash or payment, personal property, or a vehicle and seek to claim the donation as a tax deduction. Want to learn how to write and structure donor acknowledgment letters? Check out these tips and sample letters to make a greater impact.